import { BuddyProviderTimeoutException, BuddySttProviderTimeoutException, BuddyTtsProviderTimeoutException } from './buddy.exceptions';
export declare function withServiceTimeout<T>(promise: Promise<T>, timeoutMs: number, exception: BuddyProviderTimeoutException | BuddySttProviderTimeoutException | BuddyTtsProviderTimeoutException, controller?: AbortController): Promise<T>;
export declare function interpolateTemplate(template: string, vars: Record<string, unknown>): string;
export declare function formatIntentLabel(intentType: string): string;
export declare function formatTimeLabel(hour: number, minute: number): string;
export interface TimeClusterResult<T> {
    items: T[];
    avgHour: number;
    avgMinute: number;
}
export declare function clusterByTimeOfDay<T>(items: T[], minuteOfDayFn: (item: T) => number, windowMinutes: number): TimeClusterResult<T>[];
export declare function circularMeanTime<T>(items: T[], minuteOfDayFn: (item: T) => number): {
    hour: number;
    minute: number;
};